### ✅ **Updated CSS with Fade-In Animation**
```css
/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body, html {
  height: 100%;
  font-family: 'Helvetica Neue', sans-serif;
  background: linear-gradient(135deg, #f4f1ee, #e0dcd8);
  color: #333;
}

.splash-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  padding: 20px;
  opacity: 0;
  animation: fadeIn 2s ease-out forwards;
}

.domain-name {
  font-size: 2.5rem;
  font-weight: bold;
  letter-spacing: 1px;
  color: #3c2f2f;
}

.coming-soon {
  margin-top: 20px;
  font-size: 1.5rem;
  color: #6d5f5f;
  font-style: italic;
}

/* Fade-in keyframes */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
```